Goldfish and Koi Mass
Some rules of thumb for measuring koi and goldfish weight.

Buying Koi Fish
Information on buying koi fish.

Bad Water Quality Can Cause Abnormal Behaviors
Is rubbing and scratching a sign of disease or bad water quality?

How to Clean Clogged Pond Sump Pumps and Filter Screens
There are ways to decrease the amount of maintenance sump pumps and filter screens need.

Lymphocystis Disease in Your Pond Fish
Lymphocystis disease is not an attractive condition in pond fish, but it's also not fatal.

Dreaded Dropsy
Dropsy is an external sign of an internal problem.

Causes of Dropsy Symptoms
What are the causes of the symptoms of dropsy?

Why Would Fish Change Color?
Fish that change color do not necessarily have a disease.

Climbing Pond pH
What can be done about high pH in ponds?

How to Avoid New Tank Syndrome
New tank syndrome is a water quality problem.